Method for manufacturing solid mandrel of insulator

A manufacturing method and technology of insulators, applied in the direction of insulators, electrical components, circuits, etc., can solve problems such as environmental impact, inconvenient use, and complicated processes, and achieve the effects of improving mechanical properties, rapidly increasing product orders, and improving production efficiency

Active Publication Date: 2010-06-30
浙江金凤凰电力科技有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hollow mandrel is filled with sulfur hexafluoride gas. The main problem of the pillar composite insulator produced by this mandrel is that it is often necessary to detect the content of sulfur hexafluoride gas in the mandrel, which leads to inconvenience in use, an

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Make a mandrel with a diameter of 120mm.

[0015] Firstly, a base rod with a diameter of 100 mm is made in a pultrusion molding machine of epoxy resin composite material. As the matrix, it is still expanded in the pultrusion machine with continuous glass fiber bundles impregnated with epoxy resin glue, so that the diameter of the expanded mandrel is 120 mm. Like this, its cross-sectional area enlargement amount is 3454 square millimeters. Its uniformity is easy to control, the glass fiber bundles of the mandrel are evenly distributed, and it has good mechanical properties.

Embodiment 2

[0017] Make a mandrel with a diameter of 140 mm.

[0018] First use the pultrusion molding machine of epoxy resin composite material to make a base rod with a diameter of 90 mm. The specific operation can refer to the existing pultrusion molding process of epoxy resin composite material. Then, use the 90 mm base rod As the matrix, the continuous glass fiber bundles impregnated with epoxy resin glue are still used in the pultrusion machine to expand the diameter of the base rod, so that the diameter of the base rod after one expansion is 115.1. mm. In this way, its cross-sectional area enlargement is about 4000 square millimeters. Finally, the diameter of the base rod after the primary diameter expansion is used as the base body, and the diameter of the base rod after the primary diameter expansion is 140 mm. In this way, its cross-sectional area enlargement is about 5000 square millimeters. Its uniformity is easy to control, the glass fiber bundles of the mandrel are evenl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for manufacturing a solid mandrel of an insulator. According to the method, a basic bar is manufactured by drawing an epoxy resin composite material by a pultrusion process; the basic bar is used as a base body, and one or more epoxy resin composite material pultrusion diameter-expansion processes are adopted. The diameter of the basic bar is between 70 and 90 millimeters; and in each epoxy resin composite material pultrusion, the diameter expansion amount of the basic bar is that: the cross section is expanded to be no more than 5,000 square millimeters. The epoxy resin composite material is a continuous glass fiber bundle dipped in epoxy resin glue solution. The method for manufacturing the solid mandrel of the insulator uses the basic bar as the base body and adopts one or more epoxy resin composite material pultrusion diameter-expansion process. The equipment and the process for manufacturing the basic bar can be adopted in the diameter expansion process, so the method has the advantages of simple process, easily controlled uniformity and equipment investment saving. The pultrusion diameter-expansion process also ensures that the mandrel has uniformly distributed glass fiber bundle and better mechanical performance.

Description

technical field [0001] The invention relates to an insulator used in high-voltage electric transmission equipment, more specifically to a method for manufacturing a solid core rod of an insulator, and belongs to the technical field of electric equipment. Background technique [0002] Insulators are necessary for high-voltage and ultra-high-voltage power transmission lines. At the earliest, there were only porcelain and glass insulators. By the 1970s, high-temperature vulcanized silicone rubber composite insulators were first introduced in Germany. Compared with traditional insulators such as porcelain and glass, It has the advantages of light weight, high strength, strong pollution flashover resistance, convenient maintenance and transportation. In recent years, composite line post insulators have also developed rapidly in our country. [0003] Existing post composite insulators are composed of upper and lower metal accessories, mandrels and sheds outside the mandrels. The ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01B19/00
Inventor 陈丹红施延龄王薇
Owner 浙江金凤凰电力科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap